Well, I used this set, and I tanked half a team once. Toxic and stealth rock really work!
Bronzor @ Eviolite
Trait: Levitate
EVs: 220 HP / 4 Atk / 68 Def / 4 SAtk / 148 SDef
Sassy Nature (+SDef, -Spd)
- Stealth Rock
- Psychic
- Toxic
- Gyro Ball
This... set... works. I know this is an old question, but I felt like posting.